Browse > Article
http://dx.doi.org/10.9720/kseg.2014.3.363

Influence of Anisotropy of Microcrack Distribution in Pocheon Granite Rock on Elastic Resonance Characteristics  

Kang, Tae-Ho (Geotechnical Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Kim, Kwang Yeom (Geotechnical Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Park, Deok-Won (Groundwater & Geothermal Resources Division, Korea Institute of Geoscience and Mineral Resources)
Shin, Hyu-Soung (Geotechnical Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Publication Information
The Journal of Engineering Geology / v.24, no.3, 2014 , pp. 363-372 More about this Journal
Abstract
Granite rock is reported to have three orthogonal anistoropic planes i.e., rift, grain induced by microcrack characteristics and mineral arrangement. We investigated the influence of thus fabric anisotropy in granite on elastic wave properties using free-free resonance test to obtain unconstrained compression wave velocity, shear velocity, Poisson ratio and damping ratio. As a result, Rod wave velocity is more dependent on anisotropy of granite due to microcrack distribution than shear wave velocity. In addition, anisotropy of Poisson ratio and damping ratio is also observed with respect to three anisotropic planes.
Keywords
Pocheon granite; anisotropy; microcrack; free-free resonance tests;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Douglass, P. M. and Voight, B., 1969, Anisotropy of granites - a reflection of microscopic fabric: Geotechnique, 19, 376-379.   DOI
2 Greaves, G. N., Greer, A. L., Lakes, R. S., and Rouxel, T., 2011, Poisson's ratio and modern materials, Nature Materials, 10, 823-837.   DOI
3 Lama, R. M. and Vutukuri, V. S., 1978, Handbook on mechanical properties of rocks, Vol. II, Trans Tech. Publication, 117-13.
4 Nasseri, M. H. B., Mohanty, B., and Robin, P. Y. F., 2005, Characterization of microstructures and fracture toughness in five granitic rocks, International Journal of Rock Mechanics and Mining Sciences, 42, 450-460.   DOI   ScienceOn
5 Park, B. S., Joh, S. H., Lee, S. H., and Kang, T. H., 2006, Resonances of unconstrained compressive, shear and flexural waves in free-free cylinder specimens, Proceedings of Korean Geotechnical Society, 115-123.
6 Park, D. W., 2005, Mechanical anisotropy of Pocheon granite under uniaxial compression, The Journal of Engineering Geology, 15(3), 337-348.
7 Park, D. W., Kim, H. C., Lee, C. B., Hong, S. S., Chang, S. W., and Lee, C. W., 2004, Characteristics of the rock cleavage in Jurassic granite, Pocheon, 13(3), 133-141.
8 Peng, S. and Johnson, A. M., 1972, Crack growth and faulting in cylindrical specimens of chelmsford granite: International Journal of Rock Mechanics and Mining Sciences, 9, 37-86.   DOI
9 Phillips, W. J. and Phillips, N., 1980, An introductin to mineralogy for geologists: New York, John Wiley& Sons Inc.
10 Sansalone, M. J. and Streett, W. B., 1997, Impact-echo - nondestructive evaluation of concrete and masonry, Bullbrier Press.
11 Schedl, A., Kronenberg, A. K., and Tullis, J., 1986, Deformation microstructures of Barre granite - an optical, SEM and TEM study: Tectonophysics, 122, 149-164.   DOI
12 Seo, Y. S. and Jeong, G. C., 1999, Micro-damage process in granite under the state of water-saturated triaxial compression, The Journal of Engineering Geology, 9(3), 243-251.